PHP压缩前端HTML代码

php压缩前端代码，去除空行、空格

//压缩HTML
function compress_html($str ) {
	$chunks = preg_split( '/(<pre.*?\/pre>)/ms', $str, -1, PREG_SPLIT_DELIM_CAPTURE );
	$str = '';
	foreach ( $chunks as $c )
	{
		if ( strpos( $c, '<pre' ) !== 0 ) 
		{ 
		$c = preg_replace( '/[\\n\\r\\t]+/', ' ', $c ); 
		$c = preg_replace( '/\\s{2,}/', ' ', $c ); 
		$c = preg_replace( '/>\\s</', '><', $c ); 
		$c = preg_replace( '/\\/\\*.*?\\*\\//i', '', $c ); 
		}
	$str .= $c;
	}
	return $str;
}